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Meeting MS&T23: Materials Science & Technology
Symposium Society for Biomaterials: Biological Response to Materials and Material’s Response to Biological Environments
Presentation Title Tailoring of Antimicrobial Surface Through Nanostructured Ceramic Coatings
Author(s) Junghyun Cho, Shota Sakurai, Karin Sauer
On-Site Speaker (Planned) Junghyun Cho
Abstract Scope Surface or air contamination by harmful pathogens can cause serious spread of illness, which requires frequent interventions to disinfect the bacteria and viruses. A ceramic coating made of metal oxides provides unique opportunities to make the coated surface toxic to such microorganisms, thereby creating a self-cleaning surface. In order to achieve this goal, having the surface engineered with high-crystalline nanostructures and nanoshapes is crucial to inactivate toxins under light or upon contact. In our study, we employed a low-temperature hydrothermal processing to grow various nanostructures of TiO2, ZnO, and their hybrid structures. While the inactivation behavior often results from photocatalytic reactions when exposed to UV or visible light, the antimicrobial properties are observed even without light illumination. It indicates that the inactivation also results from a contact made between nanostructures and bacterial cells. Several examples of metal oxides are explored in this work to establish key nanostructure features that trigger an effective antibacterial performance.


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Surface Modification of MgZnCa Alloys Using Plasma Electrolytic Oxidation to Assess Corrosion Resistance and Biocompatibility
Surface Modification Strategies for Inhibiting Biofilm Formation on Biomaterials
Tailoring of Antimicrobial Surface Through Nanostructured Ceramic Coatings
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